As a human being, I have the right to live however which way I want to. Of course I need to follow the law of the state and pay my taxes duly, but once I am no more I need not fulfill these tasks anymore. I am neither giving nor taking anything and hence a proportional part of the system obliterates when one dies. This would happen anyway when I die of aging (which definitely IS my right. As of course I could not have chosen when I want to be born. That choice was made by my parents. But who will make the choice when I will die? In an average scenario, my parents would have died already when my time of dying of aging came along, so it can't be them. Who else? My wife, children? No. That decision has to be taken only by me and my conscious reasoning process. Of course, if I have wife and kids my reasoning process would never allow me to make that decision, but that's just me. ). So why would the legal system disallow suicide?

I see only see selfish motives. And against rights of fellow humans.